COAL JOBS
COAL NEWS
Coal Grades
The gradation of non-coking coal is based on Useful Heat Value (UHV), the gradation of coking coal is based on ash content and for semi coking / weakly coking coal it is based on ash plus moisture content , as in vogue as per notification.
Grades of Coking Coal
|
Grade |
Ash Content |
|
Steel Grade –I |
Not exceeding 15% |
|
Steel Grade -II |
Exceeding 15% but not exceeding 18% |
|
Washery Grade -I |
Exceeding 18% but not exceeding 21% |
|
Washery Grade -II |
Exceeding 21% but not exceeding 24% |
|
Washery Grade -III |
Exceeding 24% but not exceeding 28% |
|
Washery Grade -IV |
Exceeding 28% but not exceeding 35% |
Grades of Non-coking Coal
Â
|
Grade |
Useful Heat Value (UHV)(Kcal/Kg)UHV= 8900-138(A+M) |
Corresponding Ash% + Moisture % at (60% RH & 40O C) |
Gross Calorific Value GCV (Kcal/ Kg) (at 5% moisture level) |
| A | Exceeding 6200 | Not exceeding 19.5 | Exceeding 6454 |
| B | Exceeding 5600 but not exceeding 6200 | 19.6 to 23.8 | Exceeding 6049 but not exceeding 6454 |
| C | Exceeding 4940 but not exceeding 5600 | 23.9 to 28.6 | Exceeding 5597 but not exceeding. 6049 |
| D | Exceeding 4200 but not exceeding 4940 | 28.7 to 34.0 | Exceeding 5089 but not Exceeding 5597 |
| E | Exceeding 3360 but not exceeding 4200 | 34.1 to 40.0 | Exceeding 4324 but not exceeding 5089 |
| F | Exceeding 2400 but not exceeding 3360 | 40.1 to 47.0 | Exceeding 3865 but not exceeding. 4324 |
| G | Exceeding 1300 but not exceeding 2400 | 47.1 to 55.0 | Exceeding 3113 but not exceeding 3865 |
Grades of Semi-coking and Weakly Coking Coal
| Grade | Ash + Moisture Content |
| Semi coking grade –I | Not exceeding 19% |
| Semi coking grade –II | Exceeding 19% but not exceeding 24% |
Grades of NEC Coal
| Grades | UHV (Kcal/Kg) | Corresponding Ash% + Moisture %age |
| A | 6200-6299 | 18.85 – 19.57 |
| B | 5600 – 6199 | 19.58 – 23.91 |
Hot Offers
 0731-2012323 |
 Shrinetra.com |
 info@coalbazaar.com |
 Facebook |
| +91-9993299974 |
 Coalmandi.com |
admin@coalbazaar.com |
 twitter |
